JP2016084027A - Movable door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding door type movable door device comprising a plurality of door bodies and having a simple structure.SOLUTION: The movable door device comprises: a door pocket 2; a first door body 3 supported by the door pocket 2 so as to be movable forward and backward; a second door body 4 supported by the first door body 3 so as to be movable forward and backward; a rack gear 11 extended in the advancing/retreating direction of the first door body 3 and supported by the door pocket 2; a rotary motor 14 fixed to the first door body 3; a pinion gear 15 rotationally driven by the rotary motor 14 and engaged with the rack gear 11; a drive pulley 16 arranged coaxially with the pinion gear 15 and rotationally driven by the rotary motor 14; a driven pulley 18 journaled to the second door body 4; a timing belt 19 wound between the drive pulley 16 and the driven pulley 18; and a belt clamp 20 connecting the timing belt 19 and the second door body 4 to each other.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a sliding door type movable door device including two door bodies.

  In recent years, movable door devices for railway station platforms have become widespread. Platform movable door devices are commonly referred to as platform doors and are located at locations corresponding to railroad vehicle entrances and are opened when passengers get on and off, otherwise they are closed to ensure passenger safety. It is a kind of automatic door device that aims to. The home door is generally a sliding door type that includes a door pocket fixed to the platform and a door body that freely slides relative to the door pocket, and accommodates the door body in the door pocket when the door is opened. In addition, it is also known that in a sliding door type home door, when two door bodies are stacked and accommodated in a door pocket, the opening width can be almost doubled without changing the width of the door pocket.

  For example, Patent Document 1 discloses a movable home fence device having a door pocket fence, a first entrance / exit door that appears and protrudes laterally from the door pocket fence, and a second entrance / exit door that appears further laterally than the first entrance / exit door. Has been.

Japanese Patent No. 29951648

  The movable home fence apparatus described in Patent Literature 1 includes dedicated drive mechanisms for the first and second passenger doors. That is, a first drive unit that is fixed to the door pocket fence and opens and closes the first passenger door and a second drive unit that is fixed to the first passenger door and opens and closes the second passenger door. Each of the first and second drive units includes a dedicated electric motor and a feed screw device (a screw member and a nut member). As described above, the movable home fence apparatus described in Patent Document 1 has a problem that the number of parts is large, the structure is complicated, manufacturing and maintenance work is troublesome, and cost increases.

  This invention is made in view of such a situation, It is a sliding door type movable door apparatus provided with several door bodies, Comprising: It aims at providing the movable door apparatus with a simple structure. is there.

  In order to solve the above-mentioned problems, a movable door device according to the present invention includes a door pocket, a first door body supported by the door pocket so as to freely advance and retract, and a second door supported by the first door body so as to freely advance and retract. A door body, a rack gear extended in the advancing and retreating direction of the first door body and supported by the door pocket; a rotating machine fixed to the first door body; Between the meshing pinion gear, the first rolling wheel that is rotationally driven by a rotating machine, the second rolling wheel that is pivotally supported by the second door body, and between the first rolling wheel and the second rolling wheel And an endless winding transmission wound around the endlessly, and a connecting member for connecting the endless winding transmission and the second door body.

  According to this invention, since the first and second door bodies are opened and closed with a single rotating machine, the structure of the drive unit of the movable door device can be simplified. As a result, it is possible to reduce the time and labor required for manufacturing and maintaining the movable door device.

It is an external view which shows the state which installed the movable door apparatus which concerns on embodiment of this invention in the platform of a railway station. BRIEF DESCRIPTION OF THE DRAWINGS It is an external view of the movable door apparatus which concerns on embodiment of this invention, Comprising: (a) is a front view which shows a closed door state, (b) is a side view similarly, (c) shows an open door state. It is a front view. It is explanatory drawing which shows the mechanism of the movable door apparatus which concerns on embodiment of this invention, Comprising: (a) is a closed state, (b) is explanatory drawing which shows a door open state, respectively. It is explanatory drawing which shows the support mechanism of the movable door apparatus which concerns on embodiment of this invention, Comprising: (a) is a top view of this mechanism, (b) cut | disconnects this mechanism by the AA 'line of (a) (C) is a cross-sectional view taken along line BB ′ of (a). It is explanatory drawing which shows the drive mechanism of the movable door apparatus which concerns on embodiment of this invention, Comprising: (a) is a top view of this mechanism, (b) cut | disconnects this mechanism by the AA 'line of (a) FIG. It is explanatory drawing which shows the modification of the coupling joint of the rack gear of the movable door apparatus which concerns on embodiment of this invention, (a) is a hinge, (b) is a ball joint, (c) shows the connection by an elastic joint. . It is explanatory drawing which shows the modification of the movable door apparatus which concerns on embodiment of this invention, Comprising: It is sectional drawing corresponding to FIG.5 (b).

  Hereinafter, embodiments of a movable door device according to the present invention will be described in detail with reference to the drawings. In the drawings, the same or equivalent parts are denoted by the same reference numerals.

  A movable door device 1 according to an embodiment of the present invention installed on a platform 100 of a railway station is shown in FIG. As shown in FIG. 1, the movable door device 1 is erected on the foundation of the platform 100 so as to correspond to the position of the entrance 102 of the train 101 stopped at the platform 100. The movable door device 1 includes a door pocket 2, a first door body 3, and a second door body 4. When the first door body 3 is drawn into the door pocket 2 and the second door body 4 is pulled into the first door body 3, the first door body 3 and the second door body 4 are accommodated in the door pocket 2. The front of the entrance 102 can be opened widely. The crew door is a single door type sliding door, and includes a door pocket 103 and a door body 104.

  The movable door device 1 is generally configured as shown in FIG. As shown in FIG. 2A, the door pocket 2 is a substantially rectangular casing fixed to the platform 100. The 1st door body 3 is also a substantially rectangular housing | casing, Comprising: It is supported by the door pocket 2 so that advancement / retraction is possible. The second door body 4 is supported by the first door body 3 so as to freely advance and retract. As shown in FIG. 2B, the first door body 3 is “nested” with respect to the door pocket 2, and the second door body 4 is “nested” with respect to the first door body 3. It has become. FIG. 2A shows a state in which the first door body 3 is pulled out from the door pocket 2 and the second door body 4 is pulled out from the first door body 3, that is, a closed door state. In the opened state, as shown in FIG. 2C, the first door body 3 is accommodated in the door pocket 2, and the second door body 4 is accommodated in the first door body 3.

  Next, the mechanism of the movable door device 1 will be described with reference to FIGS. 3, 4 and 5. As shown in FIG. 3A and FIG. 4A, the first linear motion rail 5 is disposed in the lower part of the door pocket 2 so as to extend over substantially the entire width of the door pocket 2. The first linear motion rail 5 is fixed to the bottom plate of the door pocket 2 via a fixing bracket (not shown). A first slide bearing 6 is slidably engaged with the first linear motion rail 5. The first linear motion rail 5 and the first slide bearing 6 are commercially available mechanical parts generally called linear motion guides and linear guides, and as shown in FIG. The rail 5 has a substantially rectangular cross section. Since the first slide bearing 6 has a substantially “U” -shaped cross section and straddles the first linear motion rail 5, the first slide bearing 6 has the first linear motion rail 5. Engage with. Further, a bearing (not shown) is disposed on the surface that contacts the first linear motion rail 5 to reduce friction during sliding. Further, as shown in FIGS. 3A and 4A, the first slide bearing 6 is fixed to the first door body 3 via the first bracket 7. That is, the first slide bearing 6 is fastened to the first bracket 7 with a bolt or the like (not shown), and the first bracket 7 is fixed to the left end surface of the first door 3 with a bolt or the like (not shown). Has been. As described above, the first door body 3 is supported on the door pocket 2 by the first linear motion rail 5 and the first slide bearing 6 so as to freely advance and retract.

  Further, as shown in FIGS. 3A and 4A, the second linear motion rail 8 is provided at the lower part of the first door body 3 so as to extend substantially over the entire width of the first door body 3. Has been placed. The second linear motion rail 8 is fixed to the inner side of the side plate of the first door body 3 via a fixing bracket (not shown). A second slide bearing 9 is slidably engaged with the second linear motion rail 8. The second linear motion rail 8 and the second slide bearing 9 are also commercially available mechanical parts generally called linear motion guides and linear guides, and as shown in FIG. The rail 8 also has a substantially rectangular cross section. Since the second slide bearing 9 also has a substantially “U” -shaped cross section and straddles the second linear motion rail 8, the second slide bearing 9 also has the second linear motion rail 8. Engage. Further, a bearing (not shown) is also arranged on the surface in contact with the first linear motion rail 5 to reduce friction during sliding. As shown in FIG. 3A and FIG. 4A, the second slide bearing 9 is fixed to the second door body 4 via the second bracket 10. That is, the second slide bearing 9 is fastened to the second bracket 10 with a bolt or the like (not shown), and the second bracket 10 is fixed to the left end surface of the second door body 4 with a bolt or the like (not shown). Has been. As described above, the second door body 4 is supported by the first door body 3 by the second linear motion rail 8 and the second slide bearing 9 so as to freely advance and retract.

  As shown in FIG. 3A and FIG. 5A, the rack gear 11 is disposed in the door pocket 2 in parallel with the first linear motion rail 5. The rack gear 11 is fixed to the left end plate of the door pocket 2 via the third bracket 12 in the innermost portion (left end in the figure) of the door pocket 2. That is, the rack gear 11 is cantilevered by the door pocket 2. That is, the rack gear 11 is fixed to the third bracket 12 with a plurality of bolts or the like, and the third bracket 12 is fixed to the left end plate of the door pocket 2. In addition, although illustration was abbreviate | omitted, the tooth row | line | column is formed in the upper surface of the rack gear 11, and the lower surface is processed smoothly. A plate 13 is fixed to the left end plate of the first door 3, and a rotary motor 14 is fixed to the plate 13. A pinion gear 15 and a drive pulley 16 are coupled to the output shaft of the rotary motor 14, and the pinion gear 15 and the drive pulley 16 are rotationally driven by the rotary motor 14. The pinion gear 15 meshes with the tooth row of the rack gear 11. Therefore, when the pinion gear 15 is rotated, the pinion gear 15 rolls on the rack gear 11. The rotary motor 14 is an example of the rotary machine of the present invention, and the drive pulley 16 is an example of the first rolling wheel.

  As shown in FIGS. 3A and 5B, a sliding plate 17 is fixed to the upper surface of the plate 13, and the lower surface of the rack gear 11, that is, a tooth row is formed on the sliding plate 17. There is no contact with the surface. In addition, the upper surface of the sliding plate 17 and the lower surface of the rack gear 11, that is, the surface where both are in contact with each other are processed smoothly and coated with grease. The sliding plate 17 is an example of a support member of the present invention, and is also an example of a sliding plate.

  The rack gear 11 is sandwiched between the pinion gear 15 and the sliding plate 17, and when the pinion gear 15 rolls on the upper surface of the rack gear 11, the sliding plate 17 comes into contact with the lower surface of the rack gear 11 and slides. As described above, since the rack gear 11 is cantilevered by the door pocket 2, the rack gear 11 bends and hangs down by its own weight as it moves away from the fulcrum, but the sliding plate 17 lifts the rack gear 11 from below. The sagging is corrected at the position where the plate 17 abuts.

  As shown in FIGS. 3A and 5A, a driven pulley 18 is disposed near the right end of the first door body 3 and is pivotally supported on the inner side of the side plate of the first door body 3. ing. A timing belt 19 is wound between the driving pulley 16 and the driven pulley 18. The driven pulley 18 and the timing belt 19 are examples of the second rolling wheel and the endless winding transmission of the present invention, respectively. A belt clamp 20 is fixed to the left end of the second door body 4. A clamp piece (not shown) is provided at the tip of the belt clamp 20, the timing belt 19 is clamped between the belt clamp 20 body and the clamp piece, and the timing belt 19 is clamped with a bolt and nut (not shown). The first door 3 is connected to the timing belt 19 by clamping the timing belt 19 with the belt clamp 20. That is, the belt clamp 20 is an example of the connecting member of the present invention.

  Since the movable door device 1 is configured as described above, when the rotary motor 14 is rotated counterclockwise in the state shown in FIG. 3A, the pinion gear 15 and the drive pulley 16 are rotated counterclockwise. To do. That is, it rotates in the direction shown by the arrow 15a in the figure. Since the pinion gear 15 meshes with the rack gear 11, when the pinion gear 15 rotates counterclockwise, the pinion gear 15 rolls on the rack gear 11 and moves to the left in the figure. The pinion gear 15 is fixed to the output shaft of the rotary motor 14, the rotary motor 14 is fixed to the plate 13, and the plate 13 is fixed to the first door body 3. Attracted inside.

  When the driving pulley 16 rotates counterclockwise, the timing belt 19 moves between the driving pulley 16 and the driven pulley 18 counterclockwise. That is, the timing belt 19 moves in the left direction (the direction indicated by the arrow 19a) in the section above the driving pulley 16 and the driven pulley 18, and the timing belt 19 is illustrated in the section below the driving pulley 16 and the driven pulley 18. To the right (in the direction indicated by the arrow 19b). At this time, the belt clamp 20 is attracted to the timing belt 19 and moves in the left direction (the direction indicated by the arrow 19a) in the drawing. The second door body 4 is also attracted to the belt clamp 20 and moves to the left in the figure. That is, the second door body 4 is attracted to the first door body 3.

  As described above, when the rotary motor 14 is rotated counterclockwise in the state shown in FIG. 3A, the first door body 3 is drawn into the door pocket 2, and the second door body 4 is the first door 1. 3 is finally drawn into the state shown in FIG. 3B. That is, the movable door device 1 is in an open state.

  Further, in the state shown in FIG. 3B, when the rotary motor 14 is rotated clockwise, the pinion gear 15 and the drive pulley 16 are rotated clockwise. That is, it rotates in the direction indicated by the arrow 15b in the figure. Since the pinion gear 15 meshes with the rack gear 11, when the pinion gear 15 rotates clockwise, the pinion gear 15 rolls on the rack gear 11 and moves to the right in the figure. The pinion gear 15 is fixed to the output shaft of the rotary motor 14, the rotary motor 14 is fixed to the plate 13, and the plate 13 is fixed to the first door body 3. Pulled out.

  When the driving pulley 16 rotates clockwise, the timing belt 19 moves clockwise between the driving pulley 16 and the driven pulley 18. In other words, the timing belt 19 moves in the right direction (direction indicated by the arrow 19c) in the section above the driving pulley 16 and the driven pulley 18, and left in the section below the driving pulley 16 and the driven pulley 18. Move in the direction (direction indicated by arrow 19d). At this time, the belt clamp 20 is attracted to the timing belt 19 and moves to the right in the drawing. The second door body 4 is pushed by the belt clamp 20 and moves to the right in the figure. That is, the second door body 4 is pulled out of the first door body 3.

  Thus, in the state shown in FIG. 3B, when the rotary electric motor 14 is rotated clockwise, the first door body 3 is pulled out of the door pocket 2, and the second door body 4 is Since it is pulled out of the door body 3, the state shown in FIG. That is, the movable door device 1 is in a closed state.

  The configuration and operation of the movable door device 1 have been described above. The movable door device 1 is automatically operated by a control device (not shown). That is, the rotary motor 14 receives a command from the control device, and rotates or stops clockwise or counterclockwise to advance and retract the first door body 3 and the second door body 4. The control device operates in response to a command from a higher system. For example, the movable door device 1 installed on the platform of a railway station as shown in FIG. 1 operates in response to a command from a system that manages the operation of the entire railway, for example. That is, when a signal indicating that the train 101 has arrived from the system is transmitted to the control device, the control device that has received the signal instructs the movable door device 1 to transmit the first door 3 and the second door. The door body 4 is accommodated in the door pocket 2. When a signal indicating departure of the train 101 from the system is transmitted to the control device, the control device that has received the signal instructs the movable door device 1 to provide the first door body 3 and the second door body. 4 is pulled out from the door pocket 2.

  In the said embodiment, although the left end of the rack gear 11 was fixed to the door pocket 2, and the example connected with the door pocket 2 was shown, the support conditions with respect to the door pocket 2 of the rack gear 11 are not limited to "fixed". It is sufficient for the rack gear 11 to be restrained from moving with respect to the door pocket 2, and at least one degree of freedom of rotation is allowed. That is, you may attach the rack gear 11 so that rotation with respect to the door pocket 2 is possible. For example, as shown in FIG. 6A, the rack gear 11 may be connected to the door pocket 2 via a hinge 21. Alternatively, as shown in FIG. 6B, the rack gear 11 may be connected to the door pocket 2 via the ball joint 22. Alternatively, as shown in FIG. 6C, the rack gear 11 may be connected to the door pocket 2 via the elastic joint 23. The elastic joint 23 is a joint that connects two elements via an elastic member, and the mechanical configuration and the material of the elastic member are not limited.

  If at least one degree of rotational freedom is provided at the support end of the rack gear 11, the rack gear 11 follows the first linear motion rail 5 even if the parallelism between the rack gear 11 and the first linear motion rail 5 is insufficient. Since it is displaced, there is no problem in the opening / closing operation of the first door 3. Further, if at least one degree of rotational freedom is given to the support end of the rack gear 11, the accuracy standard of parallelism between the rack gear 11 and the first linear motion rail 5 can be lowered. As a result, work and assembly are facilitated.

  Further, as shown in FIG. 7, instead of the sliding plate 17, a roller 24 rotating around the rotation shaft 25 is brought into contact with the lower surface of the rack gear 11 to support the rack gear 11, that is, the lower surface of the rack gear 11. If the roller 24 that contacts and rolls is used as a support member, the friction between the support member and the rack gear 11 is reduced. This is because the rolling friction is generally smaller than the sliding friction. Therefore, the power required for opening and closing the movable door device 1 can be reduced. Further, the roller 24 is provided with flanges 26 that sandwich the rack gear 11 at both ends. Therefore, the displacement of the rack gear 11 with respect to the roller 24 is restricted. Therefore, it is possible to prevent the rack gear 11 and the pinion gear 15 from coming into contact with each other due to the shift of the rack gear 11.

  As described above, according to the present embodiment, since the first and second door bodies 3 and 4 can be opened and closed by one rotary motor 14, the structure of the drive unit of the movable door device 1 can be simplified. .

  The above-described embodiments are examples of specific embodiments of the present invention, and do not delimit the technical scope of the present invention. The present invention can be freely modified, applied or improved within the scope of the technical idea described in the claims.

  For example, in the above embodiment, the belt is illustrated as a specific example of the endless winding transmission, but the endless winding transmission is not limited to the belt. For example, a chain may be used. Further, the shape and form of the belt and chain are not limited. For example, belts of various shapes such as a timing belt, a flat belt, a V belt, and a round belt can be arbitrarily selected. The material of the belt is not limited.

  In the said embodiment, although the pulley was illustrated as a specific example of a rolling element, a rolling element is not limited to a pulley. For example, a sprocket wheel may be used. The form and shape of the rolling elements are not limited as long as they are mechanical elements on which various endlessly wound transmissions represented by belts and chains are wound, and are mechanical elements that mutually convert tension and torque.

  In the above embodiment, an example in which the pinion gear 15 and the drive pulley 16 are directly connected to the output shaft of the rotary motor 14 has been shown. However, a reduction gear or a gear mechanism is interposed between the pinion gear 15, the drive pulley 16 and the rotary motor 14. You may do it. The mutual positions of the pinion gear 15 and the drive pulley 16 are not limited to the coaxial arrangement. For example, the pinion gear 15 and the drive pulley 16 may be connected to different output shafts of the gear mechanism connected to the rotary motor 14.

  In the said embodiment, although the movable door apparatus which concerns on this invention was installed in the platform of a railway station, and the example made into what is called a platform door was given, the application object of this invention is not limited to a platform door. That is, the technical scope of the present invention is not limited depending on the installation location. The movable door device according to the present invention can be installed in, for example, a commercial facility or an entertainment facility.

  DESCRIPTION OF SYMBOLS 1 Movable door apparatus, 2 Door bag, 3 1st door body, 4 2nd door body, 5 1st linear motion rail, 6 1st slide bearing, 7 1st bracket, 8 2nd linear motion rail , 9 Second slide bearing, 10 Second bracket, 11 Rack gear, 12 Third bracket, 13 Plate, 14 Rotating motor, 15 Pinion gear, 16 Drive pulley, 17 Sliding plate, 18 Driven pulley, 19 Timing belt , 20 belt clamp, 21 hinge, 22 ball joint, 23 elastic joint, 24 roller, 25 rotating shaft, 26 flange, 100 platform, 101 train, 102 boarding gate, 103 door pocket, 104 door body

Claims (12)

Tote,
A first door body supported by the door pocket so as to freely advance and retract;
A second door supported by the first door so as to freely advance and retract;
A rack gear extended in the advancing and retracting direction of the first door body and supported by the door pocket;
A rotating machine fixed to the first door;
A pinion gear that is rotationally driven by the rotating machine and meshes with the rack gear;
A first rolling wheel that is rotationally driven by the rotating machine;
A second rolling wheel pivotally supported on the second door body;
An endless winding transmission wound between the first rolling wheel and the second rolling wheel;
A movable door device comprising a connecting member for connecting the endless winding transmission and the second door body. The movable door device according to claim 1, wherein the rack gear is cantilevered at the end portion of the rack gear. The movable door device according to claim 2, further comprising a support member that contacts the lower surface of the rack gear and supports the rack gear, the support member being connected to the first door body. The movable door device according to claim 3, wherein the rack gear is sandwiched between the pinion gear and the support member. The movable door device according to claim 3, wherein the support member is a sliding plate that slides with respect to the rack gear. The movable door device according to claim 3, wherein the support member is a roller that rotates in contact with the rack gear. The movable door device according to claim 6, wherein the roller includes flanges at both ends, and the rack gear is sandwiched between the flanges. The movable door device according to any one of claims 2 to 7, wherein the rack gear is fixed to the door pocket at an end portion thereof. The movable door device according to any one of claims 2 to 7, further comprising a joint that connects the rack gear to the door pocket at an end thereof, and the joint has at least one degree of freedom of rotation. The movable door device according to claim 9, wherein the joint is a hinge. The movable door device according to claim 9, wherein the joint is a ball joint. The movable door device according to claim 9, wherein the joint is an elastic joint.

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